×
-You need to clear all the tarstuff.
-The mud can be cut and cleared freely.
-The tar can be cut, but can't be completely cleared with just cuts from Beethro.
-The gel can't be cut at all.
-You only get one projection, and its explosion can't possibly reach both the tar and the gel.

×There's more than one way for the unstable projection to help you clear tarstuff.

×cut the tar with the help of projection

×The issue is that the projection has to stand where you are and in the same sword direction, right?

×Interior corners won't be cut, but they don't have to stay interior corners.